ABSTRACT
Ever since persons have come to believe in personal horoscopy, they have wondered why it should work. Doubtless the same question occurred in India because belief in astrology has been deep seated there for many centuries. The Buddhist Tantras of the Mother Tantra variety in the Anuttarayoga tradition have some theories of an inner zodiac, in all likelihood worked out in conjunction with northern Saivism, probably Kashmir Saivism. While these theories, insofar as I have come across them, are not sufficiently elaborated to show a determined rationalization to find an inner equivalent for the outer disposition of planets, etc. of a horoscope, it should be of interest to present these theories as I have found them.
